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33 Years
experience
Emergency
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Trusted Building Services in Surbiton
Established in 1993, The Capitol Group has built a reputation as a trusted provider of integrated mechanical, electrical, and building services across the UK. With regional offices in the South East, South West, Midlands, and Northern regions, we deliver nationwide coverage while maintaining a local presence. Our team of over 132 professionals serves 1,500+ sites annually, combining national self-delivery capabilities with a proven supply chain. We prioritise customer satisfaction through a 'one team' partnering approach, offering 24/7 support and tailored solutions. Our focus on statutory compliance, cost efficiency, and sustainability ensures safe, optimised environments for clients.

Backed by ISO 9001:2015 accreditation, we integrate quality management systems into all operations. With 30+ years of experience, we specialise in new builds, refurbishments, and lifecycle projects, serving commercial, retail, leisure, and residential sectors. Our dedicated service desk and cross-trained engineers ensure rapid response times, minimising downtime. We are committed to health and safety, environmental stewardship, and continuous improvement, aligning our values with those of our clients to deliver long-term partnerships.
Services
Mechanical Installations Electrical Compliance Planned Maintenance Project Management Building Refurbishments 24/7 Reactive Support
Details
  • Year established: 1993
Highlights and features
  • We offer 30+ years of experience in integrated building services.
  • Our nationwide network ensures rapid response and local expertise.
  • ISO 9001-certified quality management systems guarantee compliance.
  • 24/7 reactive service minimises client downtime and disruption.
  • Dedicated project managers ensure cost-effective, tailored solutions.
Associations and certifications
  • ISO 9001:2015
  • NICEIC
What people say
Exceptional project delivery 24/7 support minimises downtime Expert engineering team Strong compliance focus Nationwide coverage
Services
Mechanical Installations
We design and install mechanical systems including heating, ventilation, and air conditioning. Our engineers ensure energy efficiency and compliance with statutory regulations. Projects range from commercial office blocks to residential developments, with a focus on reducing operational costs and extending asset lifespan.
Electrical Compliance
Our NICEIC-accredited team provides fixed wire testing, thermal surveys, and emergency lighting checks. Services ensure adherence to electrical safety standards, minimising risks and legal liabilities. We offer detailed reports and remedial works to maintain compliance for commercial and industrial clients.
Planned Maintenance
We develop tailored maintenance strategies to optimise building performance. Using data-driven monitoring, we schedule servicing to prevent breakdowns and extend equipment life. Clients benefit from reduced downtime and predictable budgeting for mechanical and electrical systems.
Project Management
From feasibility studies to handover, we manage mechanical and electrical projects end-to-end. Our CDM-compliant approach includes design, procurement, and commissioning. Dedicated managers act as single points of contact, ensuring projects meet deadlines, budgets, and quality standards.
Building Refurbishments
We deliver refurbishment projects for commercial and residential properties, including structural upgrades and modernisation. In-house project managers coordinate works to exacting specifications, balancing cost, value, and risk. Services enhance property value while maintaining statutory compliance and operational continuity.
People
Geoff Marchesi
Chairman
Geoff Marchesi founded The Capitol Group in 1993 and oversees strategic direction. With decades of industry experience, he champions the company's 'one team' ethos, driving growth while maintaining a focus on quality, safety, and client relationships.
Kevin Marchesi
Managing Director - Capitol Building
Kevin Marchesi leads Capitol Building Services, specialising in new builds and refurbishments. With expertise in project delivery, he ensures high-quality outcomes for clients across commercial and residential sectors, leveraging 25+ years of construction management experience.
Matthew Marchesi
Managing Director - Capitol Engineering
Matthew Marchesi heads Capitol Engineering, overseeing mechanical and electrical services. He focuses on innovation and sustainability, ensuring technical excellence and compliance. His leadership drives the team's ability to deliver complex projects efficiently.
Simon Howard
Managing Director - Capitol Projects
Simon Howard manages Capitol Projects, delivering turnkey mechanical and electrical solutions. With expertise in lifecycle replacements, he ensures projects meet budgetary and operational goals, maintaining strong client relationships through transparent communication.
Martin McCormack
Group Director
Martin McCormack oversees group operations, ensuring alignment with strategic objectives. With a background in FM solutions, he enhances service delivery across regional offices, promoting collaboration and continuous improvement within The Capitol Group.
Questions
What sectors does The Capitol Group serve?
We work across commercial, retail, leisure, and residential sectors, providing tailored mechanical, electrical, and building services.
Are your services available nationwide?
Yes, with regional offices in the South East, South West, Midlands, and North & Scotland, we offer nationwide coverage.
Do you offer emergency repair services?
Yes, our 24/7 reactive service ensures urgent issues are addressed promptly, minimising operational disruption.
What accreditations do you hold?
We are ISO 9001:2015 certified, and our electrical team is accredited by NICEIC for compliance work.
How do you ensure project quality?
We use CDM-compliant processes, dedicated project managers, and in-house quality management systems to guarantee standards.
Can you handle large-scale refurbishments?
Yes, our experienced team delivers complex refurbishment projects, balancing cost, value, and risk for optimal outcomes.